DAC6574

DAC6574 www.ti.com SLAS408 – DECEMBER 2003 2QUAD, 10-BIT, LOW-POWER, VOLTAGE OUTPUT, I C INTERFACE DIGITAL-TO-ANALOG CONVERTER FEATURES Micropower Operation: 500 µA at 3 V VDD Fast Update Rate: 188 kSPS Per-channel Power-down Capability Power-On Reset to Zero 2.7-V to 5.5-V Analog Power Supply 10-Bit Monotonic I2C™ Interface Up to 3.4 Mbps Data Transmit Capability On-Chip Output Buffer Amplifier, Rail-to-Rail Operation Double-Buffered Input Register Address Support for up to Four DAC6574s Synchronous Update Support for up to 16 Channels Operation From –40°C to 105°C Small 10 Lead MSOP Package APPLICATIONS Process Control Data Acquisition Systems Closed-Loop Servo Control PC Peripherals Portable Instrumentation VDD DESCRIPTION The DAC6574 is a low-power, quad channel, 10-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC6574 utilizes an I2C compatible two wire serial interface supporting high-speed interface mode with address support of up to four DAC6574s for a total of 16 channels on the bus. The DAC6574 uses VDD and GND to set the output range of the DAC. The DAC6574 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place to the device. The DAC6574 contains a per-channel power-down feature, accessed via the internal control register, that reduces the current consumptio...